KYIV, Dec 26 - Gas under the contract formula with Gazprom updated by the Stockholm arbitration will be cheaper for Naftogaz Ukrainy than that bought in Europe, however, due to Gazprom's position on gas supplies to uncontrolled territories in Donbas, there are doubts about the resumption by the Russian company of supplies to the Ukrainian company, Naftogaz Head Andriy Kobolev said.

"The positive moment of the decision [of the Stockholm arbitration on the supply contract] is the price, at which Gazprom will be forced to supply us with gas, that will be lower than the one at which we are now buying gas from the European direction," he told reporters in Kyiv.